2 files changed, 15 insertions, 0 deletions
diff --git a/techlibs/xilinx/cells.box b/techlibs/xilinx/cells.box
index c236d3c90..5ad284f47 100644
--- a/techlibs/xilinx/cells.box
+++ b/techlibs/xilinx/cells.box
@@ -11,3 +11,9 @@ F7BMUX 1 1 3 1
 # Outputs: OUT
 MUXF8 2 1 3 1
 104 94 273
+
+MUXCY 3 1 3 1
+1 1 1
+
+XORCY 4 1 2 1
+1 1
diff --git a/techlibs/xilinx/cells_box.v b/techlibs/xilinx/cells_box.v
index 7805e6306..ef6f81d27 100644
--- a/techlibs/xilinx/cells_box.v
+++ b/techlibs/xilinx/cells_box.v
@@ -8,3 +8,12 @@ module MUXF8(output O, input I0, I1, S);
   assign O = S ? I1 : I0;
 endmodule
 
+(* abc_box_id = 3 *)
+module MUXCY(output O, input CI, DI, S);
+  assign O = S ? CI : DI;
+endmodule
+
+(* abc_box_id = 4 *)
+module XORCY(output O, input CI, LI);
+  assign O = CI ^ LI;
+endmodule